{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{4}{c}}
\hline\hline
                    &\multicolumn{4}{c}{\specialcell{\;\;\;\;\; Change in source fecal contamination \;\;\;\;\;}}\\\cmidrule(lr){2-5}
                    &\multicolumn{1}{c}{(1)}   &\multicolumn{1}{c}{(2)}   &\multicolumn{1}{c}{(3)}   &\multicolumn{1}{c}{(4)}   \\
\hline
Predicted change    &       0.138** &       0.170** &       0.042   &       0.027   \\
source fecal contamination x treated&     (0.067)   &     (0.074)   &     (0.074)   &     (0.078)   \\
Predicted change    &       5.822***&       5.370***&       6.613***&       6.543***\\
source fecal contamination&     (0.358)   &     (0.411)   &     (0.413)   &     (0.435)   \\
Predicted change    &      -0.272   &       0.644   &      -0.306   &       0.198   \\
hh-ws distance x treated&     (0.373)   &     (0.464)   &     (0.268)   &     (0.383)   \\
Predicted change    &       1.251***&       0.594** &       1.435***&       0.942***\\
hh-ws distance      &     (0.210)   &     (0.276)   &     (0.208)   &     (0.214)   \\
Constant            &      -0.031*  &      -0.057***&      -0.035*  &      -0.040** \\
                    &     (0.019)   &     (0.019)   &     (0.019)   &     (0.019)   \\
\hline
Predicted location  &        Desk   &        Desk   &   Algorithm   &   Algorithm   \\
Treatment unit fixed effects&          No   &         Yes   &          No   &         Yes   \\
R2                  &        0.21   &        0.28   &        0.22   &        0.30   \\
Obs                 &        6051   &        6051   &        6051   &        6051   \\
\hline\hline
\end{tabular}
}
